<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script type="text/javascript">
			if(0) {// false
				console.log("0")
			}
			
			if(!0) {// true
				console.log("!0")
			}
		</script>
	</head>
	<body>
	</body>
</html>
